8. Philip Rivers

After starting Chargers quarterback Drew Brees went to the New Orleans Saints following the 2005 season, Rivers was named the starter and led the Chargers to a 14-2 record in his first season.

In 2007, he helped the Chargers win their first playoff game since 1994 by beating the Tennessee Titans in the divisional round of the 2007 playoffs. He eventually led them to the AFC Championship game.

He has a career total of 11 fourth quarter comebacks.

With the draft class of '04's QBs such as Eli Manning and Big Ben adding rings to their collection, will Rivers finally come out victorious and be able to celebrate with them, or will he continuously struggle in San Diego to make it past the AFC championship game?

6. Donovan McNabb

The second overall pick from the 1998 NFL draft, Donovan McNabb has proved to be one of the best Eagles and perhaps one of the best quarterbacks ever to not be able to win a Super Bowl ring.

McNabb led the Eagles to four consecutive NFC East division championships (2001, 2002, 2003, and 2004), five NFC Championship Games (2001, 2002, 2003, 2004, and 2008), and one Super Bowl—which they lost.

Also how can anyone forget the "4th-and-26" play in the final minutes of a 2003 NFC Divisional playoff game. Check it below:

5. Eli Manning

Just by his last name, he was deemed to be a great quarterback.

He's maybe not as great as his brother, but he has done enough to help the New York Giants to land him in the Top Five.

Drafted by Chargers but traded to Giants for Rivers, it's clear that the Giants got the better end of the deal. Manning has led them to multiple playoffs and, ultimately, Super Bowl XLII, where they beat the undefeated New England Patriots. Eli also won the MVP.

Who can forget this play, which had Giants as well as Patriots fans clinging to their seats? It is dubbed "David and Eliath":

4. Ben Roethlisberger

He became the youngest Super Bowl-winning quarterback in NFL history, helping lead the Steelers, in his second professional season, to a 21-10 victory over the Seattle Seahawks in Super Bowl XL at the age of 23.

What more is there to say?

Roethlisberger led the Steelers to a second Super Bowl title in four seasons, as they defeated the Arizona Cardinals in Super Bowl XLIII.

Roethlisberger has been one of the most efficient passers in NFL history. He currently ranks ninth all-time in NFL passer rating (91.7), fifth in yards per attempt (8.01), and eighth in completion percentage (63.29 percent) among quarterbacks with a minimum of 1,500 career attempts.

He has the fifth highest winning percentage (.698) as a starter in the regular season among quarterbacks with a minimum of 80 starts. All of that alone proves the greatness of Big Ben.